jasonshort
starting to spend too much on rocks
Member since June 2019
Posts: 113
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Post by jasonshort on Jul 25, 2019 22:41:12 GMT -5
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stonemon
Cave Dweller
Member since January 2017
Posts: 1,024
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Post by stonemon on Jul 25, 2019 22:50:59 GMT -5
Jasper on all but the last two which look different. My two cents....
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Post by fernwood on Jul 26, 2019 5:41:45 GMT -5
#1 is really different. The top part looks like quartzite, but the bottom looks like jasper.
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Post by pauls on Jul 26, 2019 16:44:16 GMT -5
I agree with fernwood on the first, the others are Jasper. It's a very blurry line between Jaspers and cherts and even Agates sometimes, don't get too tied up in identification.
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Post by fernwood on Jul 27, 2019 8:54:18 GMT -5
Chalcedony covers cherts, jaspers and agates.
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jasonshort
starting to spend too much on rocks
Member since June 2019
Posts: 113
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Post by jasonshort on Jul 27, 2019 10:12:59 GMT -5
Thanks for all the help. I am debating what to do with them, slice them, break them up and tumbke them.... does anyone have any ideas?
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fuss
spending too much on rocks
Member since October 2018
Posts: 250
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Post by fuss on Jul 29, 2019 8:34:25 GMT -5
All but the last two appear to be chert, they may be as well but photos are just a first step in helping ID rocks. If you were planning on it anyway break off a piece of each of the last two and post a photo of the fresh broken surface dry to get a possibly id. Where are these from? location info can be helpful for id's or rocks and minerals quite often.
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Post by greig on Jul 29, 2019 8:57:21 GMT -5
Your rocks appear to be a variety of opaque chalcedony that some would call jasper. The name jasper is usually reserved for (opaque) lapidary chalcedony - - that will polish with an appealing colour and perhaps an attractive pattern. Yours might be nice rock polished in a tumbler. I would break the cracked ones with a hammer and then start them "a rolling". If you do this, I hope you post the pics. ;-)
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